Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712747
U. Chakraborty, S. Chatterjee, S. Chowdhury, P. Sarkar
A single feed multi frequency compact rectangular microstrip antenna is presented in this paper. A triangular slot is introduced at the upper edge of the patch to reduce the resonant frequency A small piece of triangular patch is grown within the triangular slot to improve the gain bandwidth performance of the antenna. The antenna size has been reduced by 32.9% when compared to a conventional square patch with a maximum of 160 MHz bandwidth and −34 dB return loss Mainly it is developed to operate in the WiMax frequency range of 3.2–3.8 GHz with 26.67 % bandwidth ratio.
{"title":"Triangular slot microstrip patch antenna for wireless communication","authors":"U. Chakraborty, S. Chatterjee, S. Chowdhury, P. Sarkar","doi":"10.1109/INDCON.2010.5712747","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712747","url":null,"abstract":"A single feed multi frequency compact rectangular microstrip antenna is presented in this paper. A triangular slot is introduced at the upper edge of the patch to reduce the resonant frequency A small piece of triangular patch is grown within the triangular slot to improve the gain bandwidth performance of the antenna. The antenna size has been reduced by 32.9% when compared to a conventional square patch with a maximum of 160 MHz bandwidth and −34 dB return loss Mainly it is developed to operate in the WiMax frequency range of 3.2–3.8 GHz with 26.67 % bandwidth ratio.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"685 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121987688","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712717
S. Gupta, Deepak Kumar, T. Ghose
The frequency linked availability based tariff in Indian tariff system which encourages the redispatching of participating generating units in real line. According to availability based tariff the generating units are paid at higher rates for the unscheduled interchange they make to restore the frequency to nominal value of 50 Hz. Hence the generating units can earn more profit through unscheduled interchange. This paper compares the effect of primary and secondary controller in automatic generation control on dynamic change in generation and profit earned by generating units. A comparative study in terms of profit earning has been made between generating units with only primary controller or free governor mode and generating units with secondary or supplementary controller along with primary controller. This work also encourages the generating units to operate the units not only on free governor mode but also with supplementary controller which is still not commonly practiced in India.
{"title":"Effect of automatic generation controller of participating generators under frequency linked Indian tariff system","authors":"S. Gupta, Deepak Kumar, T. Ghose","doi":"10.1109/INDCON.2010.5712717","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712717","url":null,"abstract":"The frequency linked availability based tariff in Indian tariff system which encourages the redispatching of participating generating units in real line. According to availability based tariff the generating units are paid at higher rates for the unscheduled interchange they make to restore the frequency to nominal value of 50 Hz. Hence the generating units can earn more profit through unscheduled interchange. This paper compares the effect of primary and secondary controller in automatic generation control on dynamic change in generation and profit earned by generating units. A comparative study in terms of profit earning has been made between generating units with only primary controller or free governor mode and generating units with secondary or supplementary controller along with primary controller. This work also encourages the generating units to operate the units not only on free governor mode but also with supplementary controller which is still not commonly practiced in India.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122508720","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712629
C. Das, P. Maji, Samiran Chattopadhyay
Among the large number of genes presented in microarray data, only a small fraction of them are effective for performing a certain diagnostic test. However, it is very difficult to identify these genes for disease diagnosis. In this regard, a new supervised gene clustering algorithm is proposed to cluster genes from microarray data. The proposed method directly incorporates the information of response variables in the grouping process for finding such groups of genes. Significant cluster representatives are then taken to form the reduced feature set that can be used to build the classifiers with very high classification accuracy. The effectiveness of the proposed method, along with a comparison with existing methods, is demonstrated on three microarray data sets based on predictive accuracy of the naive Bayes'classifier, the K-nearest neighbor rule, and the support vector machine.
{"title":"Supervised gene clustering for extraction of discriminative features from microarray data","authors":"C. Das, P. Maji, Samiran Chattopadhyay","doi":"10.1109/INDCON.2010.5712629","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712629","url":null,"abstract":"Among the large number of genes presented in microarray data, only a small fraction of them are effective for performing a certain diagnostic test. However, it is very difficult to identify these genes for disease diagnosis. In this regard, a new supervised gene clustering algorithm is proposed to cluster genes from microarray data. The proposed method directly incorporates the information of response variables in the grouping process for finding such groups of genes. Significant cluster representatives are then taken to form the reduced feature set that can be used to build the classifiers with very high classification accuracy. The effectiveness of the proposed method, along with a comparison with existing methods, is demonstrated on three microarray data sets based on predictive accuracy of the naive Bayes'classifier, the K-nearest neighbor rule, and the support vector machine.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122787210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712692
O. Verma
A novel edge detection technique for color images is presented in this paper. In the proposed method, contemporary fuzzy logic is used to implement a relative pixel similarity value algorithm. The smoothness of each pixel is calculated in four directions by use of weighted similarity rules and is normalized to maximum gray level. In other words, image in three dimensional color spaces is mapped into one dimension. Accordingly, thresholding technique is used to find and highlight the edges associated with the image. The pixels lower than the threshold values are assumed to be edges. Thus with proposed method, edge pixels in a color image are detected simultaneously without any complex calculations such as gradient, Laplace and statistical calculations.
{"title":"Fuzzy edge detection based on similarity measure in colour image","authors":"O. Verma","doi":"10.1109/INDCON.2010.5712692","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712692","url":null,"abstract":"A novel edge detection technique for color images is presented in this paper. In the proposed method, contemporary fuzzy logic is used to implement a relative pixel similarity value algorithm. The smoothness of each pixel is calculated in four directions by use of weighted similarity rules and is normalized to maximum gray level. In other words, image in three dimensional color spaces is mapped into one dimension. Accordingly, thresholding technique is used to find and highlight the edges associated with the image. The pixels lower than the threshold values are assumed to be edges. Thus with proposed method, edge pixels in a color image are detected simultaneously without any complex calculations such as gradient, Laplace and statistical calculations.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116450517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712725
Saumya Gautam, Nakul Goyal
In this paper, an improved particle swarm optimization (IPSO) based load frequency control (LFC) of a single area power system is presented. Although the Particle Swarm Optimization approaches have several advantages, they can still have drawbacks like local optimal trapping due to premature convergence(i.e. exploration problem). This paper proposes an improved PSO framework adopting a crossover operation scheme to increase exploitation capability of PSO. The study has been realized for control of a single area interconnected power system with IPSO optimized self-tuning PID controller. The comparison between a conventional Proportional-Integral (PI) controller and the proposed PSO based controller showed that the proposed controller can generate a better transient response for a step load change. For this application, MATLAB-Simulink software is used.
{"title":"Improved particle swarm optimization based load frequency control in a single area power system","authors":"Saumya Gautam, Nakul Goyal","doi":"10.1109/INDCON.2010.5712725","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712725","url":null,"abstract":"In this paper, an improved particle swarm optimization (IPSO) based load frequency control (LFC) of a single area power system is presented. Although the Particle Swarm Optimization approaches have several advantages, they can still have drawbacks like local optimal trapping due to premature convergence(i.e. exploration problem). This paper proposes an improved PSO framework adopting a crossover operation scheme to increase exploitation capability of PSO. The study has been realized for control of a single area interconnected power system with IPSO optimized self-tuning PID controller. The comparison between a conventional Proportional-Integral (PI) controller and the proposed PSO based controller showed that the proposed controller can generate a better transient response for a step load change. For this application, MATLAB-Simulink software is used.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126257015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712651
Jaideep Singh, Ipseeta Aruni
This paper presents the design of Power Flow algorithm that has enhanced performance on the Graphics Processing Unit (GPU) using Compute Unified Device Architecture (CUDA). This work investigates the performance of optimized CPU versions of Newton-Raphson (Polar form) and Gauss-Jacobi power flow algorithms, highlights the approach used to reduce the computation time by performing these studies on massively parallel GPU cores. Simulations results demonstrate the significant acceleration of the GPU version compared to its CPU variant, thus reducing processing time making them suitable for real-time online dispatching purposes.
{"title":"Accelerating Power Flow studies on Graphics Processing Unit","authors":"Jaideep Singh, Ipseeta Aruni","doi":"10.1109/INDCON.2010.5712651","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712651","url":null,"abstract":"This paper presents the design of Power Flow algorithm that has enhanced performance on the Graphics Processing Unit (GPU) using Compute Unified Device Architecture (CUDA). This work investigates the performance of optimized CPU versions of Newton-Raphson (Polar form) and Gauss-Jacobi power flow algorithms, highlights the approach used to reduce the computation time by performing these studies on massively parallel GPU cores. Simulations results demonstrate the significant acceleration of the GPU version compared to its CPU variant, thus reducing processing time making them suitable for real-time online dispatching purposes.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133298898","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712715
S. Sadhukhan, S. Mandal, Partha Bhaumik, Debashis Saha
In real-life scenario where users mostly know their destinations a priori, their movement is not purely random (as assumed in random walk model); rather it is somewhat direction-based and depends on the present location and the final destination. For instance, an office goer often returns home in the evening (i.e., mobility is diurnal). While no existing research has studied direction-based diurnal mobility model which could be of immense importance to cellular operators, we formulate a Markov model for such movement and give a theoretical upper bound of cell boundary crossings (i.e., expected number of handoffs) by the user. We have theoretically calculated the number of handoffs based on our proposed mobility model and verified the result in a simulated environment. We find that a majority of inter-RNC/MSC handoffs [4] comes from only a few cells which should be made dual-homed by the operators for their cost reduction.
{"title":"A novel direction-based diurnal mobility model for handoff estimation in cellular networks","authors":"S. Sadhukhan, S. Mandal, Partha Bhaumik, Debashis Saha","doi":"10.1109/INDCON.2010.5712715","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712715","url":null,"abstract":"In real-life scenario where users mostly know their destinations a priori, their movement is not purely random (as assumed in random walk model); rather it is somewhat direction-based and depends on the present location and the final destination. For instance, an office goer often returns home in the evening (i.e., mobility is diurnal). While no existing research has studied direction-based diurnal mobility model which could be of immense importance to cellular operators, we formulate a Markov model for such movement and give a theoretical upper bound of cell boundary crossings (i.e., expected number of handoffs) by the user. We have theoretically calculated the number of handoffs based on our proposed mobility model and verified the result in a simulated environment. We find that a majority of inter-RNC/MSC handoffs [4] comes from only a few cells which should be made dual-homed by the operators for their cost reduction.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133371935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712620
B. Basu, G. K. Mahanti
In recent years, evolutionary optimization (EO) techniques have attracted considerable attention in the design of electromagnetic systems of increasing complexity. This paper describes a method of synthesis of uniform circular array antenna using three recent search heuristics: Modified Particle Swarm Optimization (MPSO), Differential Evolution (DE) and Artificial Bee Colony (ABC) optimization algorithms. The objective of the work is to generate a pencil beam with minimum Side Lobe Level (SLL) and maximum possible directivity. Excitation of individual array elements is computed using the algorithms. Dynamic Range Ratio (DRR) of current amplitude distribution is fixed at an optimum value. Phase of excitation distribution is fixed at zero degree. Simulation results illustrate the performance of MPSO, DE and ABC regarding their applicability as numerical optimization techniques.
{"title":"Evolutionary algorithms for synthesis of uniform circular array with minimum Side Lobe Level and maximum directivity","authors":"B. Basu, G. K. Mahanti","doi":"10.1109/INDCON.2010.5712620","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712620","url":null,"abstract":"In recent years, evolutionary optimization (EO) techniques have attracted considerable attention in the design of electromagnetic systems of increasing complexity. This paper describes a method of synthesis of uniform circular array antenna using three recent search heuristics: Modified Particle Swarm Optimization (MPSO), Differential Evolution (DE) and Artificial Bee Colony (ABC) optimization algorithms. The objective of the work is to generate a pencil beam with minimum Side Lobe Level (SLL) and maximum possible directivity. Excitation of individual array elements is computed using the algorithms. Dynamic Range Ratio (DRR) of current amplitude distribution is fixed at an optimum value. Phase of excitation distribution is fixed at zero degree. Simulation results illustrate the performance of MPSO, DE and ABC regarding their applicability as numerical optimization techniques.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130910000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712756
Y. Choukiker, S. K. Behera
A small size and multiband behavior in the shape of Sierpinski triangle fractal is presented in this paper. The model is applied to predict the behavior of the fractal antenna when the flare angle and height of the antenna is changed. The simulated at ≥ −10 dB reflection bandwidth of the multiband frequencies for band 1, band 2, and band 3 are presented in this paper. The radiation characteristics, E M characteristics, gain and directivity are also presented and discussed.
{"title":"CPW-Fed compact multiband Sierpinski triangle antenna","authors":"Y. Choukiker, S. K. Behera","doi":"10.1109/INDCON.2010.5712756","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712756","url":null,"abstract":"A small size and multiband behavior in the shape of Sierpinski triangle fractal is presented in this paper. The model is applied to predict the behavior of the fractal antenna when the flare angle and height of the antenna is changed. The simulated at ≥ −10 dB reflection bandwidth of the multiband frequencies for band 1, band 2, and band 3 are presented in this paper. The radiation characteristics, E M characteristics, gain and directivity are also presented and discussed.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115317591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-12-01DOI: 10.1109/INDCON.2010.5712610
A. Nandi, S. Kundu
Energy Conservation is one of the most vital aspects in Wireless Sensor Networks (WSNs) for better network durability since nodes have limited resources. Excessive high transmit power consumes more energy and increases internode interference significantly. While, low transmit power may cause network failure. Thus choice of optimal transmit power is one of the prime concern in such network. Optimal transmit power is the minimum power required to sustain the network connectivity while maintaining a predefined maximum tolerable Bit Error Rate (BER). In this paper, the effects of Rician fading are investigated on optimal transmit power, BER performance and energy consumption. Further impact of severity of Rician fading on WSN performance is also studied.
{"title":"Optimal transmit power in Wireless Sensor Networks in a multipath Rician fading channel","authors":"A. Nandi, S. Kundu","doi":"10.1109/INDCON.2010.5712610","DOIUrl":"https://doi.org/10.1109/INDCON.2010.5712610","url":null,"abstract":"Energy Conservation is one of the most vital aspects in Wireless Sensor Networks (WSNs) for better network durability since nodes have limited resources. Excessive high transmit power consumes more energy and increases internode interference significantly. While, low transmit power may cause network failure. Thus choice of optimal transmit power is one of the prime concern in such network. Optimal transmit power is the minimum power required to sustain the network connectivity while maintaining a predefined maximum tolerable Bit Error Rate (BER). In this paper, the effects of Rician fading are investigated on optimal transmit power, BER performance and energy consumption. Further impact of severity of Rician fading on WSN performance is also studied.","PeriodicalId":109071,"journal":{"name":"2010 Annual IEEE India Conference (INDICON)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123891284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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